6491395894006400

Names of 6491395894006400

• Cardinal: 6491395894006400 can be written as Six quadrillion, four hundred ninety-one trillion, three hundred ninety-five billion, eight hundred ninety-four million, six thousand, four hundred.

Scientific notation

• Scientific notation: 6.4913958940064 × 10¹⁵

Factors of 6491395894006400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 395043

Divisors of 6491395894006400

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 128 130 160 200 208 260 320 325 400 416 520 640 650 800 832 1040 1300 1600 1664 2080 2600 3200 4160 5200 8320 10400 20800 41600 395023 790046 1580092 1975115 3160184 3950230 5135299 6320368 7900460 9875575 10270598 12640736 15800920 19751150 20541196 25281472 25676495 31601840 39502300 41082392 50562944 51352990 63203680 79004600 82164784 102705980 126407360 128382475 158009200 164329568 205411960 252814720 256764950 316018400 328659136 410823920 513529900 632036800 657318272 821647840 1027059800 1264073600 1643295680 2054119600 3286591360 4108239200 8216478400 16432956800 156043170529 312086341058 624172682116 780215852645 1248345364232 1560431705290 2028561216877 2496690728464 3120863410580 3901079263225 4057122433754 4993381456928 6241726821160 7802158526450 8114244867508 9986762913856 10142806084385 12483453642320 15604317052900 16228489735016 19973525827712 20285612168770 24966907284640 31208634105800 32456979470032 40571224337540 49933814569280 50714030421925 62417268211600 64913958940064 81142448675080 99867629138560 101428060843850 124834536423200 129827917880128 162284897350160 202856121687700 249669072846400 259655835760256 324569794700320 405712243375400 499338145692800 649139589400640 811424486750800 1298279178801280 1622848973501600 3245697947003200 6491395894006400
• Sum of all divisors σ(n): 17269341399750510
• Sum of proper divisors (its aliquot sum) s(n): 10777945505744110
• 6491395894006400 is an abundant number, because the sum of its proper divisors (10777945505744110) is greater than itself. Its abundance is 4286549611737710

Bases of 6491395894006400

• Binary: 10111000011111110001111100010010110111101001010000000₂
• Hexadecimal: 0x170FE3E25BD280
• Base-36: 1RX0A3SEZCW

Squares and roots of 6491395894006400

• 6491395894006400 squared (6491395894006400²) is 42138220652723149103443240960000
• 6491395894006400 cubed (6491395894006400³) is 273535872525822734621018663784058654982144000000
• The square root of 6491395894006400 is 80569199.4127185057
• The cube root of 6491395894006400 is 186543.1755272429

Scales and comparisons

• 6,491,395,894,006,400 seconds is equal to 206,406,310 years, 11 weeks, 4 days, 8 hours, 53 minutes, 20 seconds.
• To count from 1 to 6,491,395,894,006,400 would take you about six hundred nineteen million, two hundred eighteen thousand, nine hundred thirty years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 6491395894006400 cubic inches would be around 15545.3 feet tall.

Recreational maths with 6491395894006400

• 6491395894006400 backwards is 0046004985931946
• The number of decimal digits it has is: 16
• The sum of 6491395894006400's digits is 68
• More coming soon!